Why is HDL Cholesterol Considered to be ‘Good’?
There are some very interesting questions coming out regarding the benefits of HDL cholesterol.
High HDL cholesterol has always been encouraged because people with higher HDL cholesterol levels have a reduced risk for heart disease. If you have low HDL cholesterol levels it’s likely that your doctor recommended you to boost levels through diet and exercise or by taking niacin supplements. This is due to the long held belief that HDL cholesterol reduces heart disease risk by “picking up” artery clogging cholesterol from circulation.
A new study utilizing modern genetic testing is challenging this theory, finding that there may not be a direct cause-and-effect relationship between reduced heart disease risk and high HDL cholesterol levels. Study findings indicate the high HDL levels themselves may not be protective on their own. These high HDL levels may be an indicator of something else reducing heart disease risk.
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Midlife Weight Loss Reduces Heart Disease Risk
You are at greater risk of heart disease if you were overweight as a teen, compared to those who gained weight later in life. However, it was never clarified if this was because overweight teens become overweight adults OR does being overweight during your teen years cause irreversible damage.
Good news has come out of recent research published in The Archives of Internal Medicine that indicates losing weight mid-life can reduce heart disease risk if you’ve been overweight since your teens.
This research was conducted by Harvard Medial School reviewing data on 19,000 Harvard alumni who entered their freshman year of school between 1916 and 1950. Follow up on these individuals occurred over 82 years and evaluated at habits, heart disease, body mass indexes.
Study results found the heaviest students were most likely to become overweight adults. Obese freshmen men had almost double the risk of dying from heart disease later in life compared to those of normal weight during their college years. Freshmen men who were overweight their freshmen year also had a substantially increased risk of dying from a heart disease.
The good news came when researchers factored in middle age and any change in weight at that time. Men who began college overweight or obese, but lost weight and were considered normal weight in middle age no longer had an increased risk of dying from heart disease.
Metabolic Syndrome Bigger Problem for Heart Disease Than Obesity
A study published in the Journal of the American College of Cardiology has found individuals with a healthy weight and metabolic syndrome are at increased risk of heart failure when compared to overweight individuals that are metabolically healthy.
Metabolic Syndrome
Metabolic syndrome is the name given to a group of risk factors that increase your risk for heart disease, diabetes, and stroke.
Here are the five conditions considered risk factors for metabolic syndrome:
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Skinny Doesn't Always Equal Healthy
There are many factors that play a role in your risk for heart disease and diabetes. These factors include diet, physical activity, smoking, weight, age, sex, ethnicity, and so on. Genetics is a factor that plays a role.
Researchers from Britain’s Medical Research Council Epidemiology Unit have identifies a ‘lean gene’ that is linked to reduced body fat, but increased risk for heart disease and type 2 diabetes. Heart disease and type II diabetes are typically associated with being overweight, so finding a gene that links leanness to heart disease and diabetes is of interest. This may help explain why some individuals that are a healthy weight still struggle with high cholesterol and elevated glucose levels.
Lower Heart Disease Risk While at Work
Being active while you work can reduce your risk for heart disease just as much as exercising in your leisure time.
A Finnish study of 60,000 men and women reports reduced heart failure risks when physical activity levels increased at work.
